NFPA 90A: Standard for the Installation of Air-Conditioning and Ventilating Systems is the industry-standard life safety code for preventing the spread of fire, smoke, and toxic gases through mechanical air-distribution systems. Published by the National Fire Protection Association (NFPA), this essential manual establishes fire-safety requirements for the design, construction, operation, and maintenance of HVAC equipment, ductwork, and ventilation systems in commercial, industrial, institutional, and multi-family structures. It serves as a core technical reference for mechanical contractors, system designers, fire inspectors, and candidates preparing for state trade licensing examinations.
 
Key Features
Fire & Smoke Containment: Detailed installation standards for UL-listed fire dampers, smoke dampers, and combination dampers at wall, floor, and fire-barrier penetrations.
Ductwork & Air Distribution: Specifications for noncombustible duct materials, flexible connectors, joint sealing, and low-smoke insulation criteria.
Plenum Space Standards: Strict guidelines for ceiling plenums and shafts, restricting combustible storage and defining flame/smoke ratings for wiring, piping, and mechanical components.
Controls & System Integration: Provisions for automatic equipment shutdown, smoke detection integration, manual emergency controls, and life-safety system interlocks.

NFPA 90A  is used on Florida's CMC (Certified Mechanical Contractor) and CAC (Class A & B Certified Air Conditioning Contractor) licensing exams. Brand new mint condition, current editions used on the exam at the time of purchase. Pre-Tabbed options available for Quick Navigation.